Dòng Nội dung
1
Những đòn tâm lý trong bán hàng = The psychology of selling / Brian Tracy ; Huyền Trang dịch.
Hà Nội : Lao động - Xã hội, 2012.
303 tr.; 20 cm.

The psychology of selling teaches the skills needed for success in selling in spite of tough economic times, personal slumps and increased competition
2
Personal selling : a relationship approach / Ronald B. Marks.
Upper Saddle River, N.J. : Prentice Hall, c1997.
xix, 587 p. : ill. (some col.) ; 26 cm.